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上感是婴幼儿最常见的呼吸道疾病,为了寻找方法简便、疗效好的预防措施,本文设计用卡介菌多糖核酸(BCG-Polysaccharide Nucleic Acid Fraction,BCG-PSN)滴鼻预防幼儿上感,结果示临床效果好。
On the flu is the most common respiratory disease in infants and young children, in order to find a simple and effective preventive measures, this paper designed BCG-polysaccharide nucleic acid (BCG-PSN) intranasal nasal prevention flu, the results Clinical effect is good.